Do you know exactly what types of products you've added? I ask only because some algae products add bromine, and bromine added to a chlorine pool makes it a bromine pool. The issue with this is that while CYA stabilizes chlorine and keeps it from breaking down as fast in the UV light from the sun, bromine has no such similar stabilizer. Once the hypobromous acid does it's oxidizing magic, you end up with bromine ions (Br-). This is similar to how once hypochlorous acid oxidizes waste, you end up with chloride ions (Cl-). The issue is that once there's bromine ions in the water, as soon as you add chlorine the chlorine reacts immediately with the bromine ions and turns them into hypobromous acid, neutralizing the chlorine. Now there's no chlorine, just bromine, and while the bromine is fine for keeping the pool clean, it breaks down super fast in the UV light of the sun.
The only way to remove bromine once added, is to do a complete drain and fill of the pool. Unfortunately, nobody ever tells you this when they sell you products that contain bromine! I see you were draining, if you did a 100% drain and fill there's no need to worry about what you may have added, but
if you added bromine products and only did a 75% drain this may still be an issue. So if you know what was added, we should be able to help you figure out if this is an issue or not. Again though, if you did a 100% drain and fill, no need to worry about this anymore.
I don't know much about plaster pools, but I know being dry is bad for the plaster, so get the pool refilled as soon as you can.
Oh, and welcome to the forum!
I see
@Newdude has already linked my favorite link on all the crystal clear pools from all the TFP members already. Cause I would have linked it had he not done so already.
